22002220000 has 120 divisors (see below), whose sum is σ = 54246897936. Its totient is φ = 8781696000.

The previous prime is 22002219949. The next prime is 22002220021. The reversal of 22002220000 is 2220022.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a zygodrome in base 10.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 12339109 + ... + 12340891.

Almost surely, 2^22002220000 is an apocalyptic number.

22002220000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22002220000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27123448968).

22002220000 is an abundant number, since it is smaller than the sum of its proper divisors (32244677936).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22002220000 is an equidigital number, since it uses as much as digits as its factorization.

22002220000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2430 (or 2407 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 10.

Adding to 22002220000 its reverse (2220022), we get a palindrome (22004440022).

The spelling of 22002220000 in words is "twenty-two billion, two million, two hundred twenty thousand".